Detections
Analytics
Squid 3.5.x < 3.5.17 Multiple Vulnerabilities
medium Nessus Network Monitor Plugin ID 9775
Synopsis
The remote proxy server is affected by multiple attack vectors.Description
Versions of Squid 3.5.x prior to 3.5.17 are affected by multiple vulnerabilities :- A flaw in 'esi/Esi.cc' is triggered as input is not properly validated when handling ESI responses. This may allow a remote attacker to disclose the server stack layout.
- An overflow condition in 'esi/Esi.cc' is triggered as user-supplied input is not properly validated when handling ESI responses. This may allow a remote attacker to cause a buffer overflow, resulting in a denial of service or potentially allowing the execution of arbitrary code.
- An assertion flaw in 'esi/Esi.cc' is triggered as input is not properly validated when handling ESI responses. This may allow a remote attacker to terminate the service.
- An overflow condition is triggered as user-supplied input is not properly validated when processing the length of content lines in reports by the 'cachemgr.cgi' tool. This may allow a remote attacker to cause a buffer overflow, resulting in a denial of service or potentially allowing the execution of arbitrary code.
Solution
Either upgrade to Squid version 3.5.17 or later, or apply the vendor-supplied patch.See Also
http://www.squid-cache.org/Advisories/SQUID-2016_6.txt
http://www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-14034.patch
Plugin Details
Severity: Medium
ID: 9775
Family: Web Servers
Published: 11/11/2016
Updated: 3/6/2019
Nessus ID: 91194
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 5.9
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS v3
Risk Factor: Medium
Base Score: 5.6
Temporal Score: 5.4
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Temporal Vector: CVSS:3.0/E:X/RL:O/RC:C
Vulnerability Information
CPE: cpe:/a:squid-cache:squid
Patch Publication Date: 4/20/2016
Vulnerability Publication Date: 4/20/2016
Reference Information
CVE: CVE-2016-4051, CVE-2016-4052, CVE-2016-4053, CVE-2016-4054, CVE-2016-5408